Magpies defender Sinclair retires

Injury-riddled Collingwood defender Ben Sinclair has retired from AFL football, while teammates Adam Oxley and Jackson Ramsay have been delisted.

Collingwood have committed to pick Oxley in the 2017 rookie draft should he be available for selection at the time of the Magpies' pick.

Sinclair, 26, has battled a series of concussions and serious hamstring injuries since he was selected by the Magpies at pick No. 62 in the 2009 national draft.

The quick and tough-as-nails Oakleigh Chargers product, who played 63 games after making his debut in round 19, 2011, against Essendon, didn't feature at all in 2017 after tearing his hamstring in a JLT Community Series match prior to the season.

Ramsay, 22, rated as a shut-down back pocket prospect by Collingwood, also struggled with injury during his career.

In 2015 he battled shin injuries while his 2016 was cut short due to a knee reconstruction.

Collingwood general manager of football Geoff Walsh said the attitude of the pair in the face of challenges was commendable.

"It says something about both men that they shared reasonably long careers with Collingwood despite their numerous setbacks," Walsh said.

"Ben and Jackson were extremely popular teammates who leave us with a lot of friends and goodwill. The game is tough, it can be punishing and it isn't always fair. Ben, who has had to retire from the game at 26 years of age due to his physical issues, and Jackson understand this as well as anyone.

"As I said, AFL football is a tough caper. We can only thank them for giving all they had to Collingwood in their time with us."

Ramsay played 17 games after being selected at pick No.38 in the 2012 draft.

Oxley, a rebounding and intercept-marking defender from Queensland, has played 31 games since being selected by Collingwood at pick No.35 in the 2013 rookie draft.

He played 12 games in 2016 but couldn't manage any in 2017, in a season that was interrupted by hip and groin complaints.

"Adam's shown some promising signs over his career and unfortunately due to injury hasn't always been able to play to the full potential we know he's capable of," Walsh said.

"We plan to have Adam remain part of the club by selecting him in the Rookie Draft should he still be available."

Collingwood's defensive stocks have been through plenty of changes in the past two seasons.

The Pies brought in Lynden Dunn and Henry Schade to fill that void in the 2016 off season but Schade was delisted at the end of the 2017 season. Another defender, Lachie Keeffe, was also delisted at the end of 2017 after he returned from a doping ban at the beginning of this year.

Schade revealed earlier this week that father-son young gun Darcy Moore may move to Collingwood's back line for 2018 after playing predominantly as a forward since he was drafted in 2014.

It remains unclear whether 2011 All-Australian centre-half-back Ben Reid will play as a forward or defender in 2018. He switched between the forward line and defence for the Pies in 2017 but ended the season as a goal kicker.

During the trade period Collingwood brought in rookie defender Sam Murray from the Sydney Swans in a complicated deal that involved the Pies swapping a 2018 second round pick for Murray, pick 70 in 2017 and a future third-round pick.

Collingwood also lost forward Jesse White (retired) at the end of 2017.

Meanwhile Geelong announced on Monday that they had delisted Tom Ruggles and Matthew Hayball, however they will select Hayball in the rookie draft.

Adelaide announced they had delisted Jonathon Beech, while they also delisted Cam Ellis-Yoleman but have committed to selecting him in the rookie draft.

The Crows also committed to selecting potential father/son recruit Jackson Edwards, son of Tyson Edwards, in the rookie draft. Tyson played 321 games for the Crows.

"There are no guarantees for us or Jackson, but there is an ongoing commitment between the Club and the Edwards family that we will take Jackson in the Rookie Draft if he is available," Crows list manager Justin Reid said.